Warper apparatus



MPJ' 30, l939- B. MARcELLus 2,160,024

WARPER APPARATUS original Filed Nov. 2, 1955 ATTORNEYS .Patented May 30,1939 vWARPER APPARATUS Brooks Marcellus, Rockford, Ill., assignor toBarber-Colman Company, Rockford, Ill., a corporation of IllinoisOriginal application November 2, 1935, Serial No. this application April7,

. 47,919. Divided and 1938, Serial No. 200,61

2 Claims.

The present application is a division of my prior application Serial No.47 ,919 led November 2, 1935.

For an understanding of the environment in which warper clocksare usedand the practical conditions which they must fulfill, reference may bemade to Peterson patent, No. 1,747,734 and particularly to page l, lines1-22, and page V3, lines i4-'77. A

The primary function of 'a warper clock is to effect" stoppage of thewarper when a predetermined length oi yarn has been wound upon the warpbeam or lo'g. The latter is rotated through frictional contact'of theyarn mass on the beam or log with theperiphery of the driving drum ofthe warper. 'The clock is driven, not

. directly by the yarn which it purports to measure, but through apositive gear connection with the drum, The measuring of the yarntherefore actually consists in registering the number of revolutions ofthe drum in terms of yardage of yarn.

In the manufacture of Warpers, slight variations in the diameter of the'drums is inevitable.

p25-Even a slight difference between' thel diameters of the drums of twowarpers would make an appreciable diiference in the length of yarn onthe beams wound on the respective warpers, since the beams"'usually`contain many thousands of 30 yards of yarn. In the constructiondisclosed in the above-mentioned Peterson patent, the clock unitcomprised a change gear train by means of which the speed of the clockcan be adjusted to register the revolutions of the warper drum in 5terms of yards of yarn on the beam.

If the clock were moved from one warper to another, the gear train hadto be adjusted to compensate for the diiference in drum diameters.

The object of the present invention is to obvi- 40 ate the necessity forsuch readjustment.

Further objects and advantages of the invention will become apparent asthe following descriptiron proceeds taken in connection with theaccompanying drawing in which: 1

Figure 1 is a fragmental perspective view of a beam warper equipped witha clock in accordance with the present invention. y

Fig. 2 is a front elevation of vthe clock, with parts broken away, theclock pointer having made 50 approximately a third of a revolution fromthe starting position. n

In carrying out the invention the speed change gear train forms a partof the warper rather than the clock unit and is adjusted to have a 55predetermined speed ratio between its power takeoff shaft and theperipheral speed of the drum so ing drum I2 through a change speed geartrain housed in a gear casing I3 and a vertical drive shaft I4. Anysuitable form of speed change device may be used. For example, the speedchange gearing may be of the general form illustrated in Fig. 2 of saidPeterson patent, No. As shownv in Fig. 2 of such patent the speed changegearing embodies a change gear l meshing with a spur gear 6 and a changegear IIB, the change gear 'I being carried by an adjustable bracket 8.With such an arrangement to change the speed of the output shaft, towhich the change gear I0 is keyed, with respect to the input shaft 3, itis only necessary to substitute change gears 1 and I0 of differentsizes. In the present structure such a change speed gearing can be usedwith a warper beam connected to the input shaft 3 and ther clock drivingshaft connected to the shaft which supports the change speed gear ID.Alternatively the change speed gear or device may be of a conventionalexpansible pulley type shown, for example, in Machinery Encyclopedia,Vol. VI, page 426. As is rexplained more in detail in the latterpublication the speed ratio between two shafts is changed by expandingor contracting the pulleys by which they are belt connected. In eithercase the speed change device gives a wide range of variation in theratio of angular velocities between the input and output shafts. Thechange speed gear train in the casing I3 herein may be adjusted in thecase of each warper so that the angular velocity of the take-off ordriving shaft I4 bears a predetermined xed relation to the peripheralspeed of the drum I2. This predetermined relation is made standard forall machines using the clocks of the type herein disclosed so that theseclocks may be transferred from one warper to another without affectingtheir accuracy of registration despite variations in drum diameter. As aconsequence, the removably mounted warper clocks areV interchangeablebetween different machines I and Without the necessity of individualadjustsive and complicated mechanisms so that it is desirable tolutilize a minimum number of them for a series of intermittentlyoperating warpers.

A detailed description of the clock mechanism is unnecessary for anunderstanding of the present invention. The particular clock mechanismshown is that disclosed in my copending application Serial No. 47,919referred to above. In general, the warper clock shown serves to indicatea selected yardage of yarn to be wound on the warper as well as to givea continuous indication throughout the winding operation of theremaining amount of yarn which must be wound to reach the selectedtotal. In the warper clock I (Fig. 2) a rotatable graduated dial I5cooperates with a pointer`l I6 to indicate the selected total amount ofyarn Yto be wound. Similarly a graduated dial I'I marked on thetransparent bezel or cover I8 of the clock cooperates with a rotatablepointer I9 to indicate the yardage which must be wound to iinish theselected total. In addition, the clock illustrated is provided with aswitch mechanism including contacts Z (Fig. 2) which are actuated whentheselected total yardage of yarn has been wound to stop the warper.

Power for actuating the clock mechanism I0 is derived from the shaft I4connected with a shaft 2| within the clock casing. As above indicated,the clock is removably mounted on the frame I I and to permit of removalfrom its operative position on any given warper a detachable connectionis provided within the shaft I of the warper and the shaft 2l of theclock. In the present instance such a connection is provided by atransverse pin 22 on the shaftl 2! which is received in a complementalslot or notch in the top of the shaft I4. The clock may be detachablymounted on the frame I I in any suitable manner as, for example, by ascrew 23 and locating dowel 24.

It will be seen that with the arrangement set forth the warper clock Il)may be used interchangeably on any one of a series of warpers withoutany adjustment in the mechanism of the clock to compensate fordiiferences in diameter of the various drums. All such differences indrum diameter, which invariably occur in warpers,

are taken care of by the adjustment of the associated speed-changegearing I3 in such manner as to provide a uniform speed relation betweenthe clock driving shaft and drum periphery as described above.

While the invention is susceptible of various modifications andalternative constructions, I have shown in the drawing and will hereindescribe in detail the preferred embodiment, but it is to be understoodthat I do not thereby intend to limit the invention to the'speciI-icform disclosed, but intend to cover all modifications and alternativeconstructions falling within the spirit and scope of the invention asexpressed in the appended claims.

I claim as my invention:

l. A warper having, in combination, a friction drum to drive a yarncontainer, speed-reduction change gearing mounted on the warper anddriven with the drum, said gearing including a driven member adapted tobe rotated at an angular velocity bearing a predetermined ratio to theperipheral speed of said drum upon proper initial adjustment of saidchange gearing, and a warper clock detachably mounted on the warper andhaving a detachable connection to said driven member to drive theclock,V whereby said clock may be utilized to register accurately theintegrated peripheral speed of said drum irrespective of variations indrum diameter in different installations.

2. 'Ihe combination of a warper, a speedchange device mounted on thewarper and driven thereby, adapted to be driven at a predetermined speedin relation to the warper speed upon proper initial adjustment of saidspeed change device, and a warper clock detachably mounted on the warperand having a detachable connection to said driven member'to drive theclock, whereby said clock may be utilized with warper beams of differentdiameters without the necessity of adjustment of the clock to compensatefor the differences in the ratio of angular velocity to peripheral speedfor such beams in view of the predetermined standard speed of thespeedchange driven member.

BROOKS MARCELLUS.

said device including a driven member

